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WorksheetsBIO41 EOT1 Revision
Total questions: 60
Worksheet time: 45mins
Which is the correct order of bond strength from weakest to strongest bond?
Covalent Bonds, Ionic Bonds , Vander Waals Forces
Covalent Bonds, Van der Waals Forces, Ionic Bonds
Ionic Bonds, Covalent Bonds, Vander Waals Forces
Van der Waals Forces, Covalent Bonds, Ionic Bonds
Where does a reactant bind to an enzyme during a chemical reaction?
Active site
Catalyst
Product
Substrate
Select all of the statements that are true about enzymes.
Are biological catalysts
Increase the amount of product produced
Function like a lock and key with specificity
Get used up in a reaction, leaving none to be reused
The elements or compounds that are made from a chemical reaction are_____.
catalysts
products
reactants
active site
Chemical bonds that transfer electrons from one atom to another are called _____.
ionic bonds
hydrogen bonds
covalent bonds
Van der Waals forces
When you mix oil and vinegar together, you cause them to form a _____.
colloid
solution
suspension
homogeneous mixture
Blood is a ___ mixture. Select all that apply.
homogeneous
heterogeneous
colloid
suspension
Fog is a ____ mixture. Select all that apply.
homogeneous
heterogeneous
colloid
suspension
Coffee and tea form a ____ mixture. Select all that apply.
heterogeneous
homogeneous
colloid
solution
Sand and water form a ____ mixture. Select all that apply.
heterogeneous
homogeneous
colloid
suspension
Orange juice is a ____ mixture. Select all that apply.
homogeneous
heterogeneous
suspension
solution
Which of the following best explains the role of an enzyme in a chemical reaction?
It is used up in the reaction.
It increases the number of products in the reaction.
It lowers the amount of energy needed to start a reaction
It increases the activation energy to start a reaction
According to the lock and key model, the characteristics of enzymes are that _______.
all enzymes have the same active site
all substrates can bind to any active site
each enzyme has an active site where the product binds
most enzymes are specific to one reaction
Which of the following is NOT true about the importance of carbohydrates?
They are the catalytic components of enzymes
They are a central energy source for organisms
They provide structural support in hard shells of insects
They provide structural support in the plants’ cell wall
Which of the following is NOT true about the importance of proteins?
They provide cellular communication in and between cells
They play a central role in the transfer of genetic information
They play a role in cell growth
Certain types like enzymes speed up chemical reactions
Which of the following is true about the importance of nucleic acids?
They provide cellular communication in plasma membranes
They play a central role in transfer of genetic information
They play an important structural role in cell growth
They are DNA and RNA that speed up chemical reactions
The diagram below shows a section of a DNA molecule having a few nucleotides. Which part represents a sugar?
Part P
Part Q
Part R
Part S
The diagram shows a section of a DNA molecule having a few nucleotides. Each nucleotide monomer is made up of __________ parts.
1
2
3
4
The diagram below shows a section of a DNA molecule having a few nucleotides. Which part represents the phosphate group?
Part P
Part Q
Part R
Part S
You are in the Biology lab and using a microscope at the scanning/low power objective lens only. What will be the total magnification power of the compound microscope?
4x
40x
100x
1000x
If a microscope has three lenses that magnify 5x, 10x and 15x, what will be total magnification if you are observing at high power only?
15x
50x
100x
150x
The total magnification is 400x and the student was using a high-power objective lens. What is the power of the ocular lens/eyepiece for this specific magnification?
1x
10x
100x
1000x
What judgment will you make about the cell in the diagram?
It is a eukaryotic cell because it does not contain a nucleus
It is a prokaryotic cell because it does not contain a nucleus
It is a eukaryotic cell because it contains a nucleus
It is a prokaryotic cell because it contains a nucleus
Analyze the diagram to choose the part that represents the hydrophobic portion of the lipid molecule?
A
B
C
D
The structure labelled “D” helps in selective permeability of the cell membrane and it is called a _____.
phospholipid
cholesterol
cytoskeletal protein
transport protein
Which of the following is NOT true about the structure labelled “C”?
These are proteins.
Transmit signals into the cell.
These help the internal support of the cytoskeleton.
These are only on the outer surface.
Select the correct image of the phospholipid bilayer of the plasma membrane.
The _________________________________ of the phospholipid bilayer faces the watery environment inside and outside the cell.
hydrophilic tails
hydrophobic heads
hydrophobic tails
hydrophilic heads
The ____________________________ are a non-polar part of the phospholipids and turn away from the water.
hydrophilic tails
hydrophobic heads
hydrophobic tails
hydrophilic heads
The fluid-mosaic model structure refers to _____.
the mosaic pattern of phospholipids
the lack of fluidity of internal membranes
the fluidity of proteins and the patten of phospholipids
the fluidity of phospholipids, cholesterol, carbohydrates and proteins
The carbohydrates on the plasma membrane are involved in _____ and _____. (Select two functions)
adhesion between cells
reception of molecules
cell-to-cell recognition
identification of chemical signals
Which of the below organelles are found in plant cells, but not in animal cells?
Cell wall, chloroplast and large vacuole
Cell wall, plasma membrane and flagellum
Rough endoplasmic reticulum, centriole and lysosome
Rough endoplasmic reticulum, nucleolus and large vacuole
Label 1 is the ___
Golgi apparatus
Rough endoplasmic reticulum
Mitochondria
Cell Membrane
Label 5 is the ____
nucleus
centrioles
cytoskeleton
vacuole
The function of part 10 is to ____.
give energy to the cell
produce proteins
control the activities of the cell
control what goes in and out of the cell
The function of part 7 is to ___.
store materials
produce lipids
play a role in cell division
capture energy from sunlight
Solution A is ___ and B is ___ compared to the cell.
isotonic; hypotonic
isotonic; isotonic
hypotonic; hypertonic
hypertonic; hypotonic
During diffusion, _____.
a cell must be present for any molecules to move
molecules move against their concentration gradient
molecules move from the area of higher to lower concentration
solvents move from the area of high concentration to low concentration, but solutes do not
Active transport _____.
requires energy
requires a transport protein or protein pump
moves molecules against the concentration gradient
all of the above are correct
When a cell is placed in a hypertonic solution, _____.
solute exits the cell to equalize the concentration on both sides
of the membrane
water enters the cell toward the area of higher solute
concentration
water exits the cell toward the area of higher solute concentration
solute and water enter the cell
What process do cells use to get large substances outside the cell?
osmosis
diffusion
endocytosis
exocytosis
What is the name of the process occurring in the figure?
passive transport
active transport
endocytosis
facilitated diffusion
The plant in C is ___.
plasmolized
wilted
turgid
shriveled
Which of the following types of tissues is made of vessel elements and tracheids?
Epidermal
Ground
Phloem
Xylem
Which type of tissue allows the movement of water and nutrients throughout the plant?
Dermal tissue
Ground tissue
Vascular tissue
Meristematic tissue
Which meristematic tissue is responsible for continued growth of plants after being cut or trimmed, like grass and bushes?
apical meristem
floral meristem
intercalary meristem
lateral meristem
The figure represents the ___.
xylem
phloem
sclereids
dermal tissue
Which of the following shows the correct sequence tissues through which water moves in the roots?
Cortex, Endodermis, Epidermis, Pericycle, Vascular cambium, Xylem
Cortex, Endodermis, Pericycle, Vascular cambium, Epidermis, Xylem
Epidermis, Cortex, Endodermis, Pericycle, Vascular cambium, Xylem
Xylem, Vascular cambium, Pericycle, Endodermis, Cortex, Epidermis
Root hairs help the root carry out its function in that they ___.
increase the release of water to the soil.
increase the absorption of water and minerals from the soil
decrease the release of water to the soil
help protect the apical meristem from damage
Which part of a leaf carries out most of the photosynthesis in a plant?
Cuticle
Epidermis
Palisade mesophyll
Spongy mesophyll
How are compound leaves different from simple leaves?
Simple leaves have an opposite leaf arrangement, compound leaves have whorled and alternate
Simple leaves have parallel venation, compound have palmate
Compound leaves are smaller than simple leaves
Simple leaves are smaller than compound leaves
Which leaf structure allows water evaporation and the diffusion of gases into and out of the leaf?
Cuticle
Epidermis
Stomata
Petiole
Part "a" represents the ___.
Upper epidermis
Palisade mesophyll
Lower epidermis
Cuticle
Part "c" represents the ___
Palisade mesophyll
epidermis
vascular bundle
spongy mesophyll
From the table above, which hormone is NOT active when plants are flowering and producing fruits?
Abscisic Acid
Auxin
Cytokinin
Ethylene
You bought bananas and left them in the bag. After 1-2 days, your bananas are brown, very soft and sweeter. Which hormone is the cause of this change ?
Cytokinins
Auxin
Gibberellins
Ethylene
Identify the type of tropism shown in the picture below.
chemotropism
phototropism
gravitropism
thigmotropism
Which of the below statements in NOT true about nastic responses?
Is reversible
Can be repeated
Does not cause movement
Not a growth response
In labs, _____ is added to plant tissues to speed up the growth for faster experimental processes.
abscisic acid
auxin
cytokinin
ethylene
New bone growth and bone repair is done by _____.
osteoblasts
osteocytes
red bone marrow
yellow bone marrow
